Pearlscales like any other goldfish can grow to possibly 12 inches. It doesn't swim well so therefore would not be a good friend to your fair fish who has a streamlined body and only has room for itself in it's little bowl.

mine only got to 6 inchs it depends if your tank is big enough or if it is to small. an overcrowded tank or to small of a tank will keep you fish smaller. and there will be a better chance of him getting swim bladder problems u dont want that

Hi,A Lemon tetra will grow to about 2 inches max. So if you go by the 1 inch per gallon rule then you could keep 1 lemon tetra in a 2 gallon tank. However, lemon tetras are freshwater, tropical fish. They would need a heater and filter in their home. It likes to live in water of a temperature of 73-81 degrees F (23-27C). They like soft, acidic water, ph around 6.0.

Lemon tetras are schooling fish btw, so DON'T keep only one of them in a 2 gallon. This would stress the poor thing to the max So if you want to keep tetras, buy yourself a bunch of 7 or more and they'll feel more secure in the tank Make sure that they have lots of plants to hide in when necessary!